From my favourite magazine - Make :
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Technorati Tags: Array development ramblings

Getting a LCD display working with a Jeenode is easiest done using a LCD plug - but it took me much longer to get it working than I had expected.

And it all turned out to be a stupid mistake on my side :

If you can see the small potentiometer (on the top right hand side of the main chip) - it's really difficult to turn, and it controls the contrast. It turned out that it had not moved when I put a screwdriver in and turned it...

At the start I did not solder the correct 3 bridges on the card either....so lessons learnt and so on.

Technorati Tags: Arduino Array development electronics Jeenode

I've just come across Mango - a piece of software that may be of interest to me in my house monitoring experiment:

Mango, open source M2M

Welcome to the home of Mango, the world's most popular open source Machine-to-Machine (M2M) software (also known as Industrial Control, SCADA, HMI, or domotics). Mango is browser-based, Ajax-enabled M2M software that enables users to access and control electronic sensors, devices, and machines over multiple protocols simultaneously. Easy to download and install on many platforms, Mango provides an interface with which diverse data sources can be created and configured while providing downstream management of user access, alerts, data logging, and automation.
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Technorati Tags: Arduino Array development Open source

Electricity usage as recorded by the Wattson

(Click for larger image)

and as recorded and graphed on pachube for a period of a month

This is our house electricity usage - read in realtime by Ruby software running on a Mac Mini (home grown software as such) through the Wattsons USB port.
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Technorati Tags: Array development green OsX This website Web

Our home monitoring system is coming along with the addition of a set of jeenodes (see them as wireless and battery driven Arduinos)

The slave nodes look like this :

the green box houses the 3 AA batteries making this a truly wireless solution, enabling me to move this around to anywhere in the house.

At the server things look like this

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Technorati Tags: Arduino Array development electronics Jeenode LWC Open source OsX this server This website UK Weather Web